Nope! We do not provide license keys for any of the themes and plugins we have used in our websites. In fact, We have used only GPL based premium WordPress themes & plugins in our website. And these themes and plugins do not require any license keys to use in any of our readymade websites.
And for your kind information, we are also not providing any support for the themes and plugins we have used in our websites. To get the theme or plugin support, you need to contact the theme/plugin author who have developed them.